20924280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:310

約数の個数: 192

約数和(自身を含む): 77837760

約数和(自身を除く): 56913480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 51, 52, 60, 65, 68, 72, 78, 85, 90, 102, 104, 117, 120, 130, 136, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 263, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 526, 585, 612, 663, 680, 765, 780, 789, 884, 936, 1020, 1052, 1105, 1170, 1224, 1315, 1326, 1530, 1560, 1578, 1768, 1989, 2040, 2104, 2210, 2340, 2367, 2630, 2652, 3060, 3156, 3315, 3419, 3945, 3978, 4420, 4471, 4680, 4734, 5260, 5304, 6120, 6312, 6630, 6838, 7890, 7956, 8840, 8942, 9468, 9945, 10257, 10520, 11835, 13260, 13413, 13676, 15780, 15912, 17095, 17884, 18936, 19890, 20514, 22355, 23670, 26520, 26826, 27352, 30771, 31560, 34190, 35768, 39780, 40239, 41028, 44710, 47340, 51285, 53652, 58123, 61542, 67065, 68380, 79560, 80478, 82056, 89420, 94680, 102570, 107304, 116246, 123084, 134130, 136760, 153855, 160956, 174369, 178840, 201195, 205140, 232492, 246168, 268260, 290615, 307710, 321912, 348738, 402390, 410280, 464984, 523107, 536520, 581230, 615420, 697476, 804780, 871845, 1046214, 1162460, 1230840, 1394952, 1609560, 1743690, 2092428, 2324920, 2615535, 3487380, 4184856, 5231070, 6974760, 10462140, 20924280]

約数ペア:

[(1, 20924280), (2, 10462140), (3, 6974760), (4, 5231070), (5, 4184856), (6, 3487380), (8, 2615535), (9, 2324920), (10, 2092428), (12, 1743690), (13, 1609560), (15, 1394952), (17, 1230840), (18, 1162460), (20, 1046214), (24, 871845), (26, 804780), (30, 697476), (34, 615420), (36, 581230), (39, 536520), (40, 523107), (45, 464984), (51, 410280), (52, 402390), (60, 348738), (65, 321912), (68, 307710), (72, 290615), (78, 268260), (85, 246168), (90, 232492), (102, 205140), (104, 201195), (117, 178840), (120, 174369), (130, 160956), (136, 153855), (153, 136760), (156, 134130), (170, 123084), (180, 116246), (195, 107304), (204, 102570), (221, 94680), (234, 89420), (255, 82056), (260, 80478), (263, 79560), (306, 68380), (312, 67065), (340, 61542), (360, 58123), (390, 53652), (408, 51285), (442, 47340), (468, 44710), (510, 41028), (520, 40239), (526, 39780), (585, 35768), (612, 34190), (663, 31560), (680, 30771), (765, 27352), (780, 26826), (789, 26520), (884, 23670), (936, 22355), (1020, 20514), (1052, 19890), (1105, 18936), (1170, 17884), (1224, 17095), (1315, 15912), (1326, 15780), (1530, 13676), (1560, 13413), (1578, 13260), (1768, 11835), (1989, 10520), (2040, 10257), (2104, 9945), (2210, 9468), (2340, 8942), (2367, 8840), (2630, 7956), (2652, 7890), (3060, 6838), (3156, 6630), (3315, 6312), (3419, 6120), (3945, 5304), (3978, 5260), (4420, 4734), (4471, 4680)]